Firstly a big thanks to Parthiban, Skraggy_uk, eddieblock and all those who have
gone before.
At last after many, many months of p*** poor performance and support from
the GROM people I'll grudgingly admit that update V31 is stable on my IS300 / 13906
ERR3 player.
As for the handsfree bluetooth well that works with no problems with my Sony Ericsson
C902 and SOT-913 Autoleads harness adaptor.
Sorry no photos but I'd like to leave a few notes if anyone else goes down this path which I
consider quite a cheap solution and also preserves the original look.
1) I found no use the CK3000 "mute" ISO connector - just cut the wires and throw away. The
yellow mute lead can connect directly to the mute connector in the SOT-913 harness.
2) I also butchered the CK3000 "power" ISO connector so that just three pins were
used: Vbat, Vacc and GND. I connected the flying blue Vacc to the red of SOT-913 / Lexus loom.
Red and Orange going to the Parrot needed to be reversed.
3) The blue box of the SOT-913 harness is a relay module that is supplied with Vacc and GND
and handles signals for the right rear and right woofer.
4) All speakers are muted/switched during a call.
5) I put a normally closed pushbutton in line with the Grom 12v supply (red wire, pin 1 on CD2
connector) just in case I need to reset the Grom.
6) Using the Grom Aux-in is still a possibility with maybe digital radio feed
It's early days yet but I think everything's ok ... now if only I could work out a way
to mute the Grom .....
Cheers
Rob
