I recently bought an 01 Gt convertible with a couple of issues. Most are fixed but i’m stumped on the alternator overcharging. It’s a brand new alternator that charges at a normal 14V at idle and low Rpm, but at higher Rpm (4500+) the battery massively overcharges and cuts all the interior electronics off. I got a new voltage regulator installed a couple days ago, but it hasn’t changed. I found that the green/red wire coming out of the regulator was getting low voltage (between 0-6 volts). This wire runs behind the firewall and into the fuse panel under the driver side dash and up into the PCM/Cluster. I just removed the cluster and inspected the pigtails and pins and see no visible damage or corrosion. Has anyone else had this issue? Or is there a way to fix it without tracing the whole wire attempting to find a short. Also glad to join the mustang community, can’t wait to get it on the road!