Okay, so I noticed yesterday that I was getting no audio out of my driver side blaupunkt vc100 tweeter. Door Speaker didnt seem to work either.. Upon closer inspection by fading it all the way to the front left, there is audio but its very quiet and faint (sounds like the audio is far away and muted) and it doesnt sound dynamic at all, like a very narrow hz range or something..
Below are all the troubleshooting steps I have taken, please let me know if you can think of anything else to try or if my methodology is flawed..
So first thing I tried was putting a multimeter on the Wire that runs from the tweeter to my amp. I put it on and it was reading all over the place rapidly. Next I wanted to test the tweeter itself to rule out my Wire run having a short/break. So I took two small needles and pressed them through the wires tweeter side about 4 inches away. Tested around 3-4.5 ohms ish.
By now I thought the wire was at fault. I ran a new wire by taping the new one to one end of the old one and pulled it through. Buttoned everything back up and it still not working.
Next up was the crossover. I have another duplicate set of original blaupunkt vc100 crossovers. So I put a new one in and same issue.
Next up I wanted to verify its not my amp. So I swapped the L/R output going to the crossovers. Now left is right and right is left.. So I faded my HU all the way to the right to isolate the left, still no good. The otherside however worked fine. So I think I verified that the left output and the right output is fine.
Next up was my headunit. I swapped the L/R rca cables and that didnt change anything either.
Now you may remember I mentioned my door Speaker not working. I pulled the door panel and saw heavy corrosion on the terminals and wires (the speaker sits in the door with no protection or isolation from water that flows in through the window seal). Pulled the speaker, sanded the terminals and cut off the old speaker wire terminals and crimped on new ones. Doing so fixed the door speaker.
At this point Im stumped.
I have rulled out wiring, crossover, headunit, amp, and the rca's.
Do you think perhaps having my door speaker cutting out somehow lead to the tweeter fry? I dont see how it could effect the tweeter, but its an interesting coincidence.
Only other I idea I can think of is pulling the tweeter and swapping left and right to see what happens. But I dont see the point as all the other swaps I tried should have made doing so a mute point I think...
Anything else I should try? Or is it dead?
System specs:
pinoeer 5700bhs
memphis mch-1300 big belle
blaupunkt vc100 tweeters/crossovers set to cross at 3k paired with a set of mach 5 mli-65 mids
