2002 accord rear caliper question

Good day all,

I have had a thumping brake pedal for a bit and knew that I had a warped rotor. I suspected the right rear by the wear pattern of the disk. I purchased the parts and started the job to see...what the heck is the cable and assembly on the outside of the caliper? After FINALLY getting the bolts off...not a great placement of this extra assembly...I pretty much had to beat the caliper off the rotor. I was afraid of this...I will have to replace the caliper as it appears to be seized.

Now...can anyone shed some light on what I would assume is the parking brake assembly? I have read some great info on the normal replacement of the pads/rotor...but what do I need to know about the cable and arms? Do I need to release the tension somehow? Does it need to be rigged? Is there a best way to do this?

Any and all help will be greatly appreciated.

It's the parking brake cable. In order to get the piston in you will need to "screw" it in. It does not push in like a normal caliper.