Becker BE 612 Replacement

Good morning, I am replacing the Becker BE 612 with a RetroSound Grand Prix M4HD. I have attached pictures of the Becker before I removed the wiring and a stock photo of the back of the RetroSound. I have a Metra wiring harness adapter so no wires need to be cut. I do, however, have two questions. 1. What do I do with the two brown wires attached to the bolt in the middle of the Becker (circled in the picture)? 2. How do I go from the rolled clip on spade terminal (circled in the... Becker BE 612 Replacement

Good morning,
I am replacing the Becker BE 612 with a RetroSound Grand Prix M4HD. I have attached pictures of the Becker before I removed the wiring and a stock photo of the back of the RetroSound. I have a Metra wiring harness adapter so no wires need to be cut. I do, however, have two questions.
1. What do I do with the two brown wires attached to the bolt in the middle of the Becker (circled in the picture)?
2. How do I go from the rolled clip on spade terminal (circled in the...

Becker BE 612 Replacement

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