86 Bose stereo warm up?

[never2nd]

Bose stereo comes to life only after 30 minutes of driving. After it wakes up it works fine..until I turn off the ignition. Any ideas or similar problems?

 

[c4c5specialist]

HI there,
When your radio finally works, do you have a pop noise??
Do you hear any click type noise??
Please answer these questions, and we can proceed.
Besttoyou, c4c5