Hi,
Not done this yet - but my research is ambiguous and I'm stuck...
The stock radio (Blaupunkt RCD300) on my 2006 VW Touran is wired into the CANBUS - I've seen it on the diag unit.
I want to chuck that radio out and put a decent generic Sony (or similar) one in that has media capabilities (eg Bluetooth, AUX in, USB).
I do not have any fancy steering radio control knobs fitted and I do not want to fit a radio with GPS which is a good reason why the CANBUS might be needed (speed signals for one).
Anyone with any VW experience should be able to comment - I don't think there's much special about a 2006 Touran vs any other VW of similar age.
There appear to be 2 ways:
1) Simple wiring adaptor - this needs a switched ignition feed brought in from the fusebox (not on the VW harness) and also (though more optionally) something wired to the sidelights to feed the "illumination" control line on the new radio.2) Buy a CANBUS equipped wiring harness adpator that presents switched- Ignition (effectively) and illumination signals from the CANBUS data - which is how the RCD300 deals with these.
And lastly:
3) Is an antenna booster needed?I've seen a alot of information that is inconsistent:
a) For (1) above, some say that ripping the factory radio off the CANBUS causes the main battery to go flat as "the system constantly probes for the missing radio".
b) A professional fitter said he never used CANBUS adaptors as they were expensive, and he'd heard of them causing problems. He always added a fused lead to the ignition via the fusebox (you know what I mean) and did not bother with the illumination signal though
c) Which CANBUS adaptor is any good - they cost between £40 to £100+
Which is the safest way that actually works? It used to be so simple :(
Cheers,
Tim