Your first mod is something that doesn't work? Sorry...Don't mean to sound rude I just hate seeing people waste money on these. I can explain it all if you like, but long story short...when that goes off....it's too late.
You my friend have absolutely no clue what you are talking about. But id love to hear your explanation...
I have used radar detectors for years. The best ones are V1, and Escorts. Ive never owned a V1 but have a friend who does and he loves it. Currently i have the Escort Redline. I have a tenancy to drive a little faster and i have never been pulled over while using my radar detector. There has however been a few times where i was driving a vehicle that didn't have a detector and i did get a ticket.
Police typically use one of 2 radar bands nowadays: K and Ka. Mostly Ka (newer) but it depends on where you live too. One thing about K band that sucks is here recently new crash detection/avoidance systems on newer vehicles use K band. So you will get false alarms from them. I don't think any of the companies have figured out how to get around that at this point.
The fact is these devices do work. Especially the V1 and Escorts which can give you alerts miles in advance. The 2 types of speed detection they cannot protect you against are LIDAR (laser) and VASCAR.
Ive never seen VASCAR in use before personally but nothing can defeat it.
As far as LIDAR goes, many detectors will indeed alert you to it but by the time you realize whats happening its too late. LIDAR isnt used nearly as commonly as radar. Mostly speed traps as they have to individually target you. LIDAR can be "jammed" more like washed out. But many states have laws against systems that do this.
Personally i think radar detectors are a great investment.