inputs.text: works well price - drive toyota rav4 wanted way play music want since radio station selection live pretty poor ive music downloads cd ripping burning pleasantly surprised find fm modulators would allow take digital music car pros 1 plays wma format 2 simple use figure couple small things 3 decent sound expect oem stereo system vehicle quite bit windroad noisethe rav4 no concert hall cons 1 youre true audiophile device probably wont 2 skimpy instructionswhen first set no idea look see car \\recognized\\ device powered cigarette lighter display instantly showed bunch icons tiny display window see words read \\no device\\ nothing else happened went ahead inserted sd card slot nothing changed nothing played knew clear fm station figured tricod didnt work wasnt transmitting signal stereo system time later took close look display could see \\no device\\ message referred sd card vague outline sd card next words turns inserted sd card upside please note need insert card label side turned card reinserted device started working advertised however lack information instructions im giving 4 stars instead 5 surprising thingonce device started working totally clear fm channel found turn stereos volume max hear music faint level still ready return thing decided try tuning theother fm stations tuned another one tricods designated frequencies station clearly use tricods signal actually stronger could hear music fine normal volume level strange ive never used fm modulators cant compare tricod