They seem to be of good quality but the fit is just too tight. Very hard to get them to seat all the way. When pressing them on them back of head unit the back was actually bending in I was pressing so hard. Then I had to remove them to re-route and it was even harder to get them off. I agree better to have them tight then loose and risk that they fall off but this is just stupid how tight they are. Other then the fit they seem to perform as expected. I ran my remote on wire right beside and zero feed back or noise.
Pros: Quality seems good and we'll insulated from interference
Cons: They fit too tight to amp and stereo... very hard to remove or even seat fully