Ford Excursion :: No Start Or Crank But Clicking / Buzzing / Dinging And Blinking

I have a 2000 V10 4wd. I'm going to list what happened in time order to best describe this problem. Sometimes when key is off there is a clicking from under the brake proportioning valve and sometimes a 2 second long buzz. When this happens, the A/C blower motor can run with key out also. If mistakenly left on over night it kills the battery.

I also notice that sometimes while driving my airbag light comes on randomly and sometimes it dings with doors closed. Also a few weeks ago the overdrive light starts blinking every few days. A few weeks later it wont start. No crank. So I put in new starter because mine was looking pretty crusty. Still no crank, but if I jump connection on inner fender solenoid/relay, then it starts fine.

Next day I put in a new solenoid/relay on passenger inner fender. Cranks fine and starts fine for the whole day until it randomly begins cranking by it self. With no key in. It did this several times even after re-checking everything and cycling key switch to check for bad connection there. The trans starts shifting hard, like the line pressure increased and sometimes it growls a little when it shifts into 4th

I then figured it was the Digital Trans Range Sensor which only allows start signal to go from key switch to the inner fender solenoid/relay if the trans is in park or neutral. I tested the DTRS and it seems to be working fine. It only has power at the solenoid if its in park or neutral on the tan/red wire, but the wht/pnk wire has power even when not cranking.

Being I couldn't figure out why it had power, I cut the red/lt blu wire at the ignition harness and ran a wire from the key switch side to the solenoid. Cranks and starts fine for 2 days and no mystery cranking either. Then after my wife had it all day acting fine I go to leave work that night in the rain after working a 14 hour day..... no crank. I noticed the "THEFT" light blinking but I've noticed that before and never had an issue starting.

When I came back to work in the morning it cranked and started fine 3 or 4 times then crank but no start again. I reconnected the crank wire back to factory thinking I bypassed something necessary. No change. Still acting randomly. I just ordered a VSS for the rear axle and a new DTRS for the trans. Gonna put these in today and test. Next will be a key switch since I'm having things work with key not on and I have 8volts on my grey/yell Accessory wire with key off.

I found a relay that clicks when inserted in it's socket even if key off. Its located driver side by Firewall by the Brake Booster. It has a tan/red wire(same as activation wire on inner fender solenoid but doesn't effect starting.

I have a schematic of starting system but I can't post pics because new acct here. The starter wire is red/blue at Key Switch then wht/pink after Central Junction Box, then dk blu/org after CPPJ clutch pedal position jumper(mine is auto trans. thats why is has factory jumper) but then turns to wht/pink before the DTRS then tan/red out of DTRS and at solenoid(I'm not sure it goes direct from DTRS to solenoid but color stays). As mentioned earlier, the white/pink wire has power but it shouldn't unless cranking, so its either getting it from the CJB or from where it changes from dk blu/org to wht/pink. Is there anything between the CJB and the DTRS? If nothing then why does color of wire change, and what could be giving the wire power?

Just as a note, in case it matters....my interior lights don't come on when door is opened but when it is open it dings like the key is in even when its not.