hello all - frustrating issue on base 98 volvo s70

So I am getting an intermittent bulb out warning light that will quickly flash on and off out of the corner of my eye when i press the brake pedal, which is slowly driving me insane.

I can confirm the brake lights only illuminate about 4 out of 5 ...

so i am sheepishly posting this followup, but wanted to bring this issue to a close.

it turns out that there is no sound from the rear door speakers because there are no rear door speakers.

I checked the original window sticker that was in the file of service records and it indeed reflects that ...

fair enough and a sound suggestion - it will definitely be my MO for the future before i install anything. lesson learned.

but before i start cutting the harness to test before resoldering etc, let me ask this:

i found this from bay 13 over at volvospeed this diagram that breaks out what each lead ...

Greetings all - I apologize in advance for this long post, but ill go into detail as to minimize followup questions :)

ok - so i inherited a 1998 volvo s70 that came with the stock volvo hu the sc-813. the car has 8 speakers (2 in dash, 2 in front doors, 2 in rear doors, 2 on rear deck.

when i got ...