Hi All,
I have now restored the power feed to the GROM box with always on so that it remembers where it was in the music.
I also thought to feed the Bluetooth receiver from the ignition feed so that it is off with the engine as I think the Blue tooth takes a fair bit of power (it certainly has a long range).
However, the Bluetooth receiver needs 5 Volts which it gets from the GROM box, not 12, so do I install an ignition switched relay to control the 5 V feed from the GROM box?
Measure the current drawn and see if it's worth it first, I'd say.
Aha, someone with a Grom box!
Is yours a BT3?
No, it a 2 Plus. Very happy with it.
The BT receiver draws around 200 mA .... that's enough to worry me. (but I'm like that!).
Could build a 12v - 5v power circuit to power the BT receiver... 12V in, 5V regulator, couple of smoothing capacitors, and then 5V out to the BT receiver. This could then be fed off the ignition switched feed at the radio for example - or wherever is convenient :)
Ah, hmm. Ah it seems to have the same 20 pin connector...
If you have it out of the dash again for some reason, would you be able to map out the pins on the loom between it and your head unit?
I have a BT3 I'd like to re-use, but I don't have the loom. I could buy one... but I have loads of the 20 pin connectors, I'd just need the Alpine end and to know the wiring layout :)
Superb! Thank you very much :)