Installed a aftermarket dual Bluetooth, USB,SD,front auxserly port. It was working fine till tonite now it acts like it has a short in the wiring. Wont keep power to the radio for more then 15secs. What could cause this. And how can i fix it. Please help.

Yes I unhooked them both. Iam actually a mechanic but I work on engones. I am horrible with figure out electrical issues such as this an nobody seems to know the correct oil pressure I should be running either

Normal operation should get you 40-70 PSI while driving.

My gauge don't read in psi it reads with the word (L normal H) and it normally reads at the N or right below it.