
Batteries won't run out in the middle part that snaps into the case half with buttons. It took a lot of effort and a few tries, but I held the batteries with my finger and gently placed the battery holder against the button body and then squeezed very firmly until they finally snapped into place. It was incredibly difficult, but somehow I made it. The old case half with the Mustang logo is used.

KeylessOption Replacement Car Key Fob Shell Case For A269ZUA111 Remote Control Keyless Entry
11 Review

MIKKUPPA Key Shell Replacement for Toyota Camry, Corolla, Avalon, Venza Key Fob Cover with Screwdriver - Compatible with HYQ12BBY, GQ4-29T
10 Review

Transform Your Chevy Impala Or Buick Lucerne With KeylessOption Remote Case - OUC60270 & OUC60221 Compatible!
27 Review

π Audi Key Fob Cover Case 360 Degree Full Protection - Premium Soft TPU Key Shell Cover compatible with Audi A1 A3 Q3 Q7 R8 A6L TT (Flip Key, 3 Buttons) - Silver
11 Review

2 Pack JOYTUTUS Coin Holder: Universal Car Change Organizer For Most Trucks Accessories
27 Review

Tsumbay Car Backseat Organizer - PU Leather With Tablet Holder, Foldable Table Tray, And 9 Storage Pockets
33 Review

2Buyshop 2 Pack Car Tissue Holder - PU Leather Napkin Box For Sun Visor & Backseat - Black
28 Review

3-Compartment Cargo Trunk Storage Organizer By EPAuto: Maximize Your Car'S Storage Space
28 Review