any alphard upto 2008 was not fitted as standard with indicators in wing mirrors these was added as a extra in japan so you wont get a part no. on a epc to vin no. picture atatched of what yours was fitted with from epc ( electronic parts lookup ) here is a link for ebay of a uk seller selling 2nd hand ones £150.00 thats cheap https://www.ebay.co.uk/itm/314471675366?itmmeta=01HWF8M1XJ54TWHM0J8TDJM60P&hash=item4937f8f5e6:g:cv4AAOSwm6RkELH0&itmprp=enc%3AAQAJAAAA0HQ5F8xVAEyRXvC30BTl9W%2Fz%2Bb6SL%2FFui%2Bn7VRCO8pTPWqscG0wChYe%2FlZOw%2BGYWyua0lMMONwxyYpl%2F9izeM3480HZQ5%2FVAw0VUh6xv6fU6mDspD9uk32vYA5pfEZ5%2Fks30kxm2M5%2Fge9%2FCkFZfBXvm2DC%2FbvimaDR1CCvUUFhnu%2Bz1XSdnE5%2B5h345LYeHb5kcLo6Mj6fK0FirYZO36huzL0sSA6FVnUCKeAkZthoATuhh0joOyry3%2FDHCVrO58jRwPOjAqm5BHaQ%2BnvYDYh0%3D|tkp%3ABk9SR_Ce0OjjYw