Prestige platinum by audiovox need to replace the remote for it

Free online manual: https://www.manualslib.com/manual/12482/Audiovox-Prestige-Platinum-Aps-775.html
Audiovox Prestige Platinum APS 775 Owner Manual

http://www.voxxintlcorp.com/docs/common/XR9000/XR9000_OM.pdf

Operating the Prestige XR9000 Remote Start Security System

The APS95BT3 is listed as the replacement remote for the Audiovox Prestige APS55LR.

A copy of the owner's manual can be obtained from the following link:
APS55LR Owner's Manual

The remote programming manual can be downloaded from the following link:
Remote Programming Manual

Huh? Pressing the lock button arms the alarm AND locks the doors. Pressing the unlock button disarms the alarm AND unlocks the doors. If this is not happening either there is an issue with the wiring from the alarm to the car or, with the vehicle's door locks.

Go to this site http://auto.manualsonline.com/manuals/mfg/audiovox/audiovox_remote_starter_product_list.html
and click on Platinum APS 686T - Audiovox Remote Car Starter Owner's Manual
and click on APS 686 - Audiovox 4 Channel Remote Car Starter Owner's Manual

You can download the owner's manual via the following link:

http://audiovox2.info/docs/common/APS787/APS787_OM.pdf

This unit has gone through a few revisions, for other related manuals see the following link:

http://mobile.audiovox.com/findmanual/?findManual=787&x=0&y=0

IF RANGE IS NOT IMPORTANT I SUGGEST A AUDIOVOX AS9076N . ITS AN ADD ON REMOTE START WHERE YOU WOULD PRESS
LOCK
THEN UNLOCK
THEN LOCK AGAIN ON YOUR FACTORY REMOTE AND THIS WOULD START THE CAR.
I BELIEVE THE IGNITION KEY HAS BUILT IN KEYLESS ENTRY BUTTON ON IT ALREADY. SO WHY CARRY ANOTHER REMOTE?
MOST OF AUDIOVOX MIDRANGE SYSTEMS HAVE THIS OPTION FOR ADD ON REMOTE START SYSTEMS WHERE YOU CAN USE THERE REMOTE OR TIE IT IN WITH YOUR EXSISTING REMOTE.
OTHER UNITS WILL HAVE DOUBLE LOCK OPTION TO START CAR. OR TRIPLE LOCK OPERATION.

http://www.audiovox.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&storeId=10001&productId=14504&langId=-1

Those devices, when operating properly, are commonly not disconnected, but you could attempt to find the power lead and the in-line fuse to make those re-connections, also check the battery(s) in the remote. If the disconnection is more in-depth then you should acquire the installation and owners manual from Audiovox, so as to troubleshoot and maybe discover what else is disconnected.
Good luck...

Here is your installation manual

http://www.audiovox.com/manuals/installation/1286520.pdf]-