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Adding aftermarket navigation to a MOST car


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Given the fact it seems near impssible to add aftermarket Navigation to a MOST car, would it be possible to hook up the Navigation part without the stereo part? On my 2004 986S there’s room to have the current stereo unit and HVAC in the car and also have a nice 7" Nav system display. On the Nav system all you would lose would be the voice commands……you would still have the directions/display. You could continue using the old stereo for audio (CD’s, radio, etc). It’s probably a stupid idea but it seems like it would work……sort of like just adding a portable nav system to the current car, but it would be permanant mounted with a much larger screen. If you could figure out a way to get some basic sound added for the nav only it still might be pretty cool. Some of the 7" aftermarket systems have come down so much in cost they aren't much more expensive than the high end portable ones.

Thoughts or suggestions?

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Hi, I did this a couple of years ago on my 04S with MOST.

I took thee facia off the centre console and dropped the AC to the bottom, followed by CDR 23 radio. It's a bit of a stretch for all the wires buy they make it.

Get your hacksaw out and cut space in the centre of the top two slots for your 2 DIN unit. I used a kenwood 7035 but there are better units now with integrated NAV and other goodies. You will also need 12 V power - I asked the garage to do this but you may be happy tapping the wires yourself.

Back then, the only way to input sound was via a FM modulator (kenwood) into the radio antenna. This worked surprisingly well (as it's direct up the arial wire) but I didn't like the homemade way you had to tune the new unit via a channel on the CDR 23 radio.

So these days you can buy a Dension unit from Eric at Bumperplugs for proper digital input into MOST. This is aimed at Ipod input into the MOST fibre ring and control via the CD changer controls - However I believe it can also accept analogue aux. So I intend to now install this and get my Kenwood touchscreen working as an aux channel in this manner.

Proper bluetooth and updatable nav maps at last.... :D My 550 SE is a keeper so although I don't permit any exterior changes you gotta move with technology!

Given the fact it seems near impssible to add aftermarket Navigation to a MOST car, would it be possible to hook up the Navigation part without the stereo part? On my 2004 986S there’s room to have the current stereo unit and HVAC in the car and also have a nice 7" Nav system display. On the Nav system all you would lose would be the voice commands……you would still have the directions/display. You could continue using the old stereo for audio (CD’s, radio, etc). It’s probably a stupid idea but it seems like it would work……sort of like just adding a portable nav system to the current car, but it would be permanant mounted with a much larger screen. If you could figure out a way to get some basic sound added for the nav only it still might be pretty cool. Some of the 7" aftermarket systems have come down so much in cost they aren't much more expensive than the high end portable ones.

Thoughts or suggestions?

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You may also be able to input your NAV sound via the MONO input to the becker radio. There is a cable for this but check if this is supported. I want the fullstereo support of the 7" unit's features also for DVD MP3 music etc hence the Dension route.

Given the fact it seems near impssible to add aftermarket Navigation to a MOST car, would it be possible to hook up the Navigation part without the stereo part? On my 2004 986S there’s room to have the current stereo unit and HVAC in the car and also have a nice 7" Nav system display. On the Nav system all you would lose would be the voice commands……you would still have the directions/display. You could continue using the old stereo for audio (CD’s, radio, etc). It’s probably a stupid idea but it seems like it would work……sort of like just adding a portable nav system to the current car, but it would be permanant mounted with a much larger screen. If you could figure out a way to get some basic sound added for the nav only it still might be pretty cool. Some of the 7" aftermarket systems have come down so much in cost they aren't much more expensive than the high end portable ones.

Thoughts or suggestions?

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