Ok, I was going to start a new thread, but this is better due to the many helpful posts above.
I have the ALP system (5 rx heads) ready to install in my Tesla P85D, and I just ordered a new NRDSP, GPS Module, and Hi-fi control set to go with it.
I'm still torn about removing the STiR+ radar antenna because the Ka is still quite good, but just now I saw this quote above which I somehow missed earlier:
Wow.. this is a great idea!! I'm pretty sure I'll have my installer do this. But will the NRDSP antenna up front interfere with the STiR+ antenna in the rear?
I've run "ghetto arrows" for years with my R1's and Redline-O's for untold thousands of miles with no issues and more saves against the best at I/O on Earth than I can even count! I use the R1's up front for K band with all of their filtering and Ka band duty while the Redline-O's are segged to 2-5-8 only with no K band or X band out back and they kill it in the 3 cars I run them in! I would expect your setup to be very similar to mine and I wouldn't be worried at all about it.
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