You can read the recommendations in the user guide, the technical guide or the installation guide for SONY CDX-GT260MP.
You'll find the answers to all your questions on the SONY CDX-GT260MP in the user manual (information, specifications, safety
advice, size, accessories, etc.). Detailed instructions for use are in the User's Guide.
User manual SONY CDX-GT260MP
User guide SONY CDX-GT260MP
Operating instructions SONY CDX-GT260MP
Instructions for use SONY CDX-GT260MP
Instruction manual SONY CDX-GT260MP
Your user manual
SONY CDX-GT260MP