I often find myself waiting in my car, so I don't leave it idle, but I listen to music. When I start the engine, it interrupts the music for a while as the audio system restarts and reconnects to my phone via Bluetooth. Is there anything I can rewire to keep the audio system on when I start the engine?

P.S. I realize how trivial of an issue this is. No need to remind me.

 

The radio gets power from the accessory circuit (does not stay on while cranking). Cut that wire and hook it to an ignition source instead. Ignition stays hot while cranking

 

^^ That will not work.

Fuse No. 8 for the radio is already switched ignition power. It receives power when the ignition switch is in the Accessory (I) or ON (II) positions.

When the ignition switch is in the START (III) position, there is no power to Fuse No. 8.







A solution would be to use a capacitor and diode on the Yel/Red wire for the radio. See this youtube video:

 

Thanks tech8. This worked!