What is slot in dash for?

GMC IO BD，SLOT：PC5-6 Universal instrument GSM Genesis gmc slot Watch the video to learn how to create a simple slot operation as well as tailstock operation based on Generic Motion Control Slot holckenhavn slot historie GMC Van , Trailer, Opel Manta 400 Bastos Rally Condroz 1985 manufactured in Plastic by Avant Slot The Product No is RSV2103

mimpi4d slot Armrest Box USB Port 13525431 Professional Easy Installation Automobile SD Card Slot Spare Parts for GMC 16 6 US $ US $