A body Front speaker location?

One comment. I bought the mounting plate a couple years ago along with a pair of Pioneer speakers. Make sure you mount the plate and the speakers securely. Just got around to testing mine as I finished up my project and there is a definite rattle coming from those speakers / mounting plate. Thought I mounted them very securely but obviously not. Too much trouble to get to them now. But the mounting plate is very nice, worth the money.
Bill, believe it or not, that was more like four years ago in 2016 when you got one of my brackets. Time sure does fly by when you're old like the two of us!
A solution to rattling that I have employed is to use thin slices of rubber tubing, fuel line, vacuum line, etc. to isolate metal to metal contact. Might even try nylon washers. Thanks for the testimonial.