turn signals,lights, hi beams

93 grand am 3.1 , reinstalled factory head unit and installed a toggle switch from my battery to my cooling fan with ground to body, i had a good wiring diagram and it worked perfect,only thing that didnt is dimmer switch did nothing but my dash lights did not work before hand, went for a ride and after 5-10 min stereo light up, trouble lights came on then went off, but so did the head/park lights. brake lights and turn signals worked . Is there a bare wire i missed is this toggle switch messing things up? This is why my dad always told me to fix 1 thing at a time. Never had any problem before any direction would be greatly appreciated thank u all!

the headlights i shut them off and waited 5 min stereo went to 1200 , and the lights could be turned back on but only last 5-10 min before repeat cycle.

hey there ,well i have been on here a few times and getting it, got dash lights on radio working,lights on, but when i was testing every thing i had my lights and radio on, i hit the hi beams, lights shut off radio when to haywire, shut off and turned back on but was like it lost power,i am thinking something in the turn signal, lights switch must be shorting out thanks for any help. 93 grand am.

I have magicaly merged your threads.
Thiers no reason to start another on the same topic.

I would check the battery, sounds like its low, or about dead. Should be at least 12.4 volts.
Also make sure the connections are clean and tight.

battery is fine autoparts store said it ws a gear shift sensor on the floor shift,any thoughts?

thier is a park/neutral position (PNP) switch and a brake/trans shift interlock(BTSI).