Power Issues with Dell Vostro 3888

Hello Community,

This is my first time posting here so reply if there is any information needed. I have car radio with 2 speakers installed as my speaker setup and of course I have my Dell Vostro 3888 connected to it via the headphone jack. Previously I had a Dell Optiplex 3010 MT which was working fine with my speaker setup until I upgraded to this Dell Vostro 3888 I have many problems with this starting with my Car Radio, I have a power strip where I connect the computer and my 2 Dell Monitors but when I connect my Car Radio on the 4 plug of the power strip, the computer stops working, when I click on the power button, it posts but then it takes to this recovery page saying that "Your PC is unable to boot because of (some certain thing I forgot)", I try rebooting my PC but this time it doesn't switch on, I disconnected everything until I realised to temporarily fix this I need to remove the power cable from the PSU and plug it back in and I need to disconnect the Car Radio from the power strip. Once I do that, the computer works normally. This is not the only problem as when I wanted to just swap the RAM from both slots and start up the PC, it gives me an orange blinking light to resolve this I need to put back the RAM to its original slots then it boots. I never had any of these issues with my old Dell Optiplex 3010 MT and this is so annoying. Please reply immediately as this is very important and affects my work flow alot.

Regards,

Ashvath Sridharan