[. . . ] [. . . ] Using other parts can cause malfunction and possible damage to your -e receiver. - I $ If installation requires drilling holes or orher rnodlftcatim m the vehicle, consukt +'I. , :;_ - withwur neansfdealerorprofessloml caraudioinstaller. E:Do not Install this unit at an angle in excess of 30° from horizontal, as it may I , 2 affect pehrmance. ;j Avoid installing the unit in a location whlch is subject to hlgh temperatures, direct sunlight, hat alr from such soufces as heaters or exhaust lines, or where T it will be subject to centaa with dust, dirt, moisture at excessive vibration. [. . . ] [. . . ]