I don't have a close up picture, but the 3 wire blue plug definitely looks like it's the one that plugs into the security/keyless entry module. I have it ziptied to the top of my pedal box and it was broken so it's covered in electrical tape. I see a red wire on the far right, looks the same as your picture.For the 3 wire blue connector, I'm not near my car to confirm but a couple guesses since you say it's part of the dash harness: ignition switch has 2 plugs (maybe it's 1 of them?), the security/keyless entry module, info/return buttons.
I can't recall if the red with white strip was constant hot or switched hot. If it's switched then it's more likely to be info/return. If it's constant hot, then the keyless/security module or ignition 2nd plug would be more likely.