Here's a list of frequently asked questions which we hope will answer a lot of your queries and help you to make an informed decision about which system is right for you. However, if there is anything that is not answered here, please feel free to contact us via email or phone.

Q. How long does it take to fit a sat nav unit?
A. It depends on the car and the nav being fitted. However, as a rough guideline, for all VW, Skoda & Seat units we can usually fit these while you wait within approx 1hr. We can fit Audi A3 & A4 units within the same time frame if your car currently has a double DIN unit installed. If your A3/A4 has a single DIN unit installed then we would need your car for most of the day as a lot more work is required to install. Not sure if your Audi has single or double DIN? Click here for some guidance!

Q. What on earth is a single DIN and a double DIN?
A. This only really concerns Audi installations. Single DIN units are units such as the Audi Concert II or Chorus units (although to confuse matters they are also available in double DIN guise as well!). Double DIN units are typically the Audi Symphony units. On A4's, if there is a storage area below your climate control then you have single DIN. On A3's if you have a cupholder above your radio or the hazard light & ESP switches are above your radio/cd player at the moment, then you also have single DIN. For more info and some pics to help you understand whether you have single or double DIN, please click here.

Q. Why is it that you have different prices for single DIN and double DIN?
A. Single DIN are more expensive for two reasons really: 1) Extra parts such as double DIN housing, ESP switch, facia trim, storage tray, card/coin drawer etc and 2) the extra time it takes to install as a single to double DIN conversion is a lot more labour intensive.

Q. Where are you guys based?
A. We are based in Bradford (near Leeds), West Yorkshire.

Q. Do we have to come to you or do you guys do mobile fitting?
A. You can come to us for fitting, however, for certain products/services (such as Audi navs for double DIN cars, VW nav units or Bluetooth kits), we can offer mobile fitting at 69p per mile (minimum £30) chargeable one way. In other words, if you're 100 miles away, it would cost you and extra £69 for mobile fitting. If you live or work in the Bradford area, we can come out & fit at no extra charge. We can also install various other items such as Bluetooth kits and iPod interfaces on a mobile basis.

Q. But I live in London and I don't fancy paying an extra £100 or so, is there anything you can do?
A. Yes there is... we can do it for FREE!! We try to plan in at least one installation day per month to the M1 corridor & London area to fit Audi double DIN sat nav units, VW sat nav units, Bluetooth systems, iPod interfaces and video-in-motion unlocking. Assuming we get enough customers (at least five), we make our way down the M1 and onto South Mimms Services on the M25. We fit at any stop along the way and meet our London customers at our final stop of South Mimms services. And best of all, this service is completely free of charge! For details of our next installation day along the M1 corridor & in the London area, please click here.

Q. Why do you now take a deposit for the M1 corridor and London fitting days when you never used to?
A. Unfortunately we started to get a lot of people cancelling on the day or the day before the actual install date which sometimes meant we had to cancel the fitting date at the last minute and cause the rest of our customers some inconvenience. We don't like letting people down so the deposit is simply a way of ensuring we don't have to cancel a fitting date due to a few people who were never really interested in the first place. Of course, things do come up and if they do, we'll gladly re-arrange your booking for another one of our fitting dates without loss of deposit.

Q. What are the differences between versions A, B & C on the VW MFD2 based units?
A. VW updated the firmware on the newer versions so there may be slight visual differences when using the system but the main difference is the physical appearance of the units. Version A has all black buttons, Version B has the two rotary buttons in chrome, whilst Version C also has the bottom row of buttons in chrome/silver. We tend to stock the Version C DVD unit as it's the best looking and the best performing. However, which you choose is entirely up to you but for more advice, please do not hesitate to contact us.

Q. So do the DVD based units play DVD movies?
A. With the exception of the RNS-510 (MFD3) unit, the DVD based sat nav units will not play DVD movies, they are simply DVD ROMs which handle DVD map discs. We can of course add a DVD player through a multimedia interface to your sat nav if you wish.

Q. Can I watch TV on the sat nav units?
A. Not as standard, no. Our units are what you would get if you were to order the £1800-£2000 option from the dealers but at the fraction of the price. So like the dealers, if you want to add digital freeview TV, we can install that as well. Unlike the dealers, we can also add on tv-in-motion on some of the systems (of course, it is not advisable to be driving whilst the TV is active and you do so entriely at your own risk.)

Q. Can I watch TV or DVD whilst the car is in motion?
A. Not with a standard setup. However, we can incorporate TV/video-in-motion on some of our systems. We must stress that we do not advise you have TV-in-motion as it can be distracting for the driver. We only install TV-in-motion for the benefit of your passengers. In order for us to install this feature, you will be asked to sign a disclaimer to state you will be taking full responsibility for the feature's availability.

Q. What's the MFD3/RNS-510?
A. It's VW's all-singing, all-dancing sat nav unit with touch screen, built-in DVD player, built-in 30GB hard disk drive, SD memory card slot, MP3 playback, photo viewer etc etc. For more info on the RNS-510, please click here.

Q. Do you guys offer ECU re-mapping services? I want more power and/or economy than my factory setup!
A. Sorry, we do not currently offer re-mapping services.

Q. Will my Bose, Dynaudio, OEM Bluetooth, CD changer, iPod connector and/or multifunction steering wheel continue to operate as normal?
A. Yes! Everything will be coded to your new sat nav unit so they will continue to work as per normal.

Q. Your sat navs are expensive when I compare them to a TomTom or similiar portbale nav unit, so why should I buy one?
A. One reason is a TomTom won't add £1000+ to the value of your car. Other reasons include better security, better safety, great aesthetics, 100% compatibilty with your car & it's equipment such as multifunction steering wheel & OEM Blueooth, better satellite signal stength, guidance even when going through tunnels & built up areas using speed & direction sense, full integration into your car etc etc.

Q. Your sat nav units are cheap when I compare them to other people doing the same installs, are they cheap copies or something?
A. Absolutely not! All our units are Original Equipment Manufacturer (OEM) units and are the same as what any other reputable installation company would supply and fit. Why are we cheaper then? Simply because we're not greedy and we work on minimal margins to give you guys the best deals out there.

Q.Do you accept debit/credit cards?
A. We used to!! But due to a combination of extortionate bank charges, credit card fraud & the current economic climate, we are now unable to accept any type of card payment. We can accept cash, verified bankers draft (we would need to speak to your bank to verify), direct bank transfer or Paypal (subject to a surcharge). We can only accept cash on mobile fitting installations.

Q. Do the sat nav units play MP3's?
A. The Audi RNS-E units have two built in SD memory card readers which can hold up to 2GB SD cards in each slot. These unit's will then play any MP3's that are stored on the SD cards. The VW, Skoda and Seat MFD2 sat nav units will not play MP3's with the exception of VW's RNS510/MFD3 which will play MP3's from an SD card, from it's internal HDD or from a cd/dvd containing MP3 files.

Q. Are your sat nav units brand new?
A. Although our units are 2nd user, we could lie to you and tell you they were as they're all in an almost 'as-new' condition... but we're not like that, we'll tell you that they aren't brand new when other installers probably would as once they're fitted you'd be hard pressed to tell otherwise.

Q. What about a warranty?
A. All our sat nav units are warranted for three months from installation. We also offer extended warranties. Other brand new equipment carry either a 12 month warranty or a 24 month warranty depending on the actual item/service.

Q. What happens to my old radio/stereo unit?
A. You get to keep it and stick it on fleaBay for some money back making your sat nav purchase from us even cheaper... bargain!!

Q. What kind of cars do you work on?
A. Although we have worked on everything from Alfa's to Volvo's, we now choose to work exclusively on the VAG range of cars which includes Audi and Lamborghini and are now also introducing Mercedes-Benz into our range.

Q. How long is it that you've been established and can I trust you with my car?
A. We've been in the car audio business for 14+ years and have a combined experience of over 20 years. One of the partners is even an Electronics Engineering degree graduate so he understands everything down to circuit board level (well.... almost!). You're never in business that long if you're a cowboy outfit or you don't know what you're doing and we have plenty of satisfied customers to prove the calibre & quality of our work.

Q. Is this the only thing you guys do?
A. Well, no... OEM Retrofits is owned and run by a pair of petrol heads who love everything automotive. We also own and run Prime Prestige International which is dedicated to exporting prestige marques all over the world and Prime Prestige UK which is a sister company dedicated to supplying prestige marques (mainly VAG & BMW) to the UK trade & public. We originally started installing sat nav units and other OEM equipment to our own trade/retail cars exclusively, but since we had already invested in the software & hardware to do the job, we decided to also offer it to other customers as well. We also install for a lot of independent car dealers up & down the country.