I have had a 2009 RX400h, limited ed for a while now and have an ipod connector to the stereo which works fine. I have tried several bluetooth adapters that connect to the back of stereo but none seem to work. If I connect the adapters directly to the stereo they work (via 12 pin) fine. I can connect to my phone and stream music but when I use y cable so that the satnav should work as well, the adapters doesn't work. I have tried several and currently have this one; I have also used different y cables.
https://www.ebay.co.uk/itm/Bluetooth-Music-Handsfree-MP3-adapter-for-Lexus-RX-IS-SC430/121813412486?hash=item1c5ca52a86:g:sq0AAOSwFGNWRMqc
The seller have suggested that I connect it to a live 12v wire. Before I do that, can I just check if anyone has used this and if there is anything I am missing.
If it is that connecting to a live 12v wire, could you point me in the right direction please? I Don have some doubt about this because if I connect to a live 12v and the satnav is also connected, then the satnav will always be on as well?