Radio issue: That depends on how much draw there way. The memory and clock circuits are constant draws of as much as an amp.
The stereo system is actually two subsystems-The head unit, the part you see and adjust, and the amplifier, you don't see or touch this. The amplifier is switched on an off by a switching power lead from the head unit. If that power lead is constantly hot, the amp will be on all the time. That power lead sends a switching voltage (12v @ 1 amp) to a relay inside the amp which switches the main power. That relay could also be fused, maintaining main power to the amp constantly on.
Headlight issue: The headlights in your car are controlled by the switch and two relays. One of those relays in under the hood in the main relay/fuse box. The other is inside the BCM. Use a test light or meter to see if power is reaching the high beams (pink wire according to my reference). If not, check the high beam relay. You'll find in the main fuse/relay box under the hood next to the left strut tower. It SHOULD be labeled. Each high beam also has a fuse in that box that you should check.
In the future, please start two question threads if you have multiple issues this way other users can search our q&a database easier to resolve their problems. Thank you.
Wednesday, November 22nd, 2017 AT 10:19 AM