Edit - I figured it out. At least changing the combination relay. You pull it toward you and it pulls out. It snapped loose, as did the connections, but the connections took some coaxing with a screwdriver.

The disappointing thing is that my radio still turns off when the turn signals are turned on, so I guess something is still wrong. I am hoping it is just the radio has gone bad.

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I have a used replacement combination relay (N10?) for my '93 W140 Mercedes, but cannot figure out how to remove it. Do I just remove the two wiring connectors on the end and pull it out? Someone had a pic of one and it looked like wires of spaghetti, so not sure if it is simply plug and pull or not?

Also, someone sent me a turn signal relay, but where its location?

Thanks in advance!