You would need to wire the resistors across the positive and negative leads to simulate a speaker load.Not sure how warm they might get though if the volume was up loud
I took a quick look at a lc7i processor if it accepts speaker line level inputs you would think it should simulate a load to the factory system but the specs I saw said input imedance was 20k ohms
I'm going to try the Bosch H307 double rocker blade. It's just $10.02 at Amazon.
I'll post an update when I install it. I hope it works better than these single rocker blades.
I got the wife the exact same (easy) gift for X-mas. You can never go wrong with THAT gift. The local tint shop ram their little scanner on the back windows and said they were 18.5%. Thanks Dodge! The shop owner suggested 15% if a match is what I was going for. Little did I know that 30% is the legal limit in my neck of the woods.... Hey Merry Christmas honey, your brand new car is No Longer Street Legal. Oops, My bad.
It's a pretty good match though! from the outside, all windows up, sun shining bright its very hard to see the difference. The front windows are a shade darker looking through them from the drivers seat.
The fix is simple enough; wire 5 watt 8 ohm resistors across the speaker lines (which is a common value though I believe the factory speakers may be even lower impedance) and the radio will think it has speakers connected.