trying to add a Z-1 2005 porsche boxster

i have a customer that wants to add a pioneer z-1 to his 2005 porsche boxster but i need to know if it is fiberoptic and if there is any special parts needed. he doesnt want to have to replace everything, just swap head units. i figured if its as easy as a harness job with maybe a line converter its not a prob. but like i said he doesnt want new speakers or amps. any knowledge would help.

thanks

this is the wireing for a 2004 not sure if its the same but its all i got hope this helps